Answer:
Length 7 feet and Width 5 feet
Step-by-step explanation:
we know that
The area of the rectangle ( a dining room table) is equal to

where



substitute

Apply difference of squares right side


Remember that the length cannot be a negative number
so
x=2
<em>Find the length</em>

<em>Find the width </em>

Answer:
Not a function
Step-by-step explanation:
For every input there is one and only one output. So on this graph, it shows that there are two dots on a single vertical line, which means that there are two outputs. Because the definition of a function is "for every input there is one and only one output" we know that it is not a function.
It is proportional. They are all multiplied by three. (9*3=27)

this is the correct way to solve these types of exercises
then we will try to do the same where a is (6+9x) and b is 24

and solve the right inequality for x

subtract 6 for all expression

now divide on 9

ok, this means that the x values will be from -10/3 to 2 including these
Graph
solution is the red zone